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SpeedTech Internal X-Pipe Muffler X-cellerator Quiet 63mm / 2.5" Cross-Flow Porsche 996TT/GT2 2001-2005



Model #996TT-X25Q

Shopper Award

The SpeedTech 996TT X-cellerator cross-flow or X-Flow exhaust was designed to offer the discerning Porsche enthusiast the ultimate exhaust system with a number of performance and sound options in one modular platform.

CROSSFLOW or X-FLOW DESIGN - By combining the exhaust pulses from both sides of the Porsche boxer motor with an "True-X" at the center of the exhaust, we have developed a unique, exotic sound that has to be heard to be appreciated. Our trademark sound is well known amongst enthusiasts and highly respected throughout the industry.

DESIGN OPTIONS - The X-cellerator system includes Hi-Flow 100 cell catalytic converter, race pipe and muffler bypass pipe options resulting in several possible exhaust configurations.Our modular design uses V-Band couplings which allow for quick and easy swaps between the various sound and performance levels. This versatile design is very easy to use and offers quick installation and/or swaps.

PERFORMANCE - The SpeedTech X-cellerator cross-flow system eliminates approximately 25 pounds of weight (full system w/ cats) compared to the Porsche OEM exhaust. Additional weight savings can be realized with use of the off road configurations. Whether lap times or straight line speed is your goal, the weight savings will help yield quicker track times. Faster track and 1/4 mile times, better everyday performance and the pronounced engine note will provide an enhanced driving experience for all types of uses.

Our free flowing, straight through design, along with proprietary Hi-Flow 100 cell "Hi-Flow" catalytic converters or bypass pipes will significantly improve the performance of your Porsche 996TT. Our 100 cell catalytic converters offer extremely quick turbo spool, along with increased torque, higher horsepower and much crisper throttle response vs. OEM or even 200 cell aftermarket converters.

All components are constructed of T304 stainless steel and ourmufflers are packed with stainless steel wool for years of troublefree performance, even under extreme use conditions. This is avery well built, top of the line exhaust system for the discriminating enthusiast and very fitting for the top of the line Porsche turbo.

TIPS - We offer several tip options to appeal to a variety of tastes. Each tip option is pictured to the right. They include:

  • Re-use OEM tips (twin style only)
  • SpeedTech mirror polished, dual wall, 4 inch "Sound Engineered" round tips w/ rolled edge. Our dual wall SE tip design eliminates permanently stained/discolored tips. These dual wall tips maintain a shiny, new car finish forever with a quick, simple polish. Perfect for show & shine events!
  • SpeedTech 2.5 & 3.0 Dual Tips. Single wall design.

  • SOUND - The SpeedTech X-cellerator X-flow system delivers a phenomenal, exotic, high end car sound that the majority of Porsche owners desire and appreciate. Many of our customers have tried several other exhausts (some up to 5) before discovering the SpeedTech X-cellerator system. Our 996TTsystem has received numerous unsolicited accolades, many of which are displayed on our testimonials page. The bottom line is that this system sounds fantastic and offers all the options one could desire in a performance exhaust. It is available in either a 2.5" muffler version (quiet) or a Competition "X-Pipe" in either 2.5" or 3". All SpeedTech exhausts exhibit our trademark SpeedTech "X-Flow" engineered exotic sound.

    Our 2.5 "quiet" version is extremely quiet in the cabin while cruising at low RPM's and allows for ease of cell phone usage, conversation and music enjoyment, yet under acceleration it emits a very sporty, wonderful, high-end tuned sound. It's a great combination and aggressive enough for the majority of turbo owners! When optioned with the muffler bypass pipes, the 2.5 becomes a lightweight, full 3" straight pipe system for track use!

    • 100 cell Hi-Flow catalytic converters
    • 2.5"/ 63mm tubing throughout
    • 304 stainless steel construction
    • Modular V-flange system for quick and easy changes
    • Complete kit - includes all required parts for installation
    • Proprietary "cross-flow" design
    • Mirror polished 4" SE tips
    • Fully TIG welded
    • Made in USA
    • Lightweight - 27 Lbs. (with race pipes)
    • Lightweight - 29 Lbs. (with 100 cell catalytic converters)
    • Optional ceramic coating

    Proposition 65

    /!\ warningWARNING: Cancer and Reproductive Harm

    Vehicle Engine Notes
    Porsche 996 TT/GT2

    Who Is SpeedTech?

    Founded in 2007, Speed Technologies (also known as SpeedTech) provides quality exhaust parts and accessories specific to Porsche models. The market-specific manufacturer is widely recognized for its personal one-on-one communication and knowledge, which has been used to produce some of the finest Porsche products in the automotive aftermarket. As the industry expands, however, SpeedTech will look to reach out and diversify its product offerings in the aftermarket with proven parts and quality components. Beginning with a 1972 Porsche 911T, SpeedTech has concentrated its efforts on Porsche and looks forward to the future development and expansion of the brand.

    What Does SpeedTech Offer?

    SpeedTech’s goal is to provide the best-performing products available, combined with superior quality, low cost, and unparalleled customer service. The team at Speed Technologies understands the ins and outs of everything Porsche-related. As Porsche owners and enthusiasts for more than 30 years, the SpeedTech team has excellent insight as to what constitutes an exceptional exhaust. The result is a comprehensive line of superior performing exhausts for a variety of Porsche models. The brand’s efforts have not been limited to Porsche, however, as SpeedTech has developed numerous performance exhausts for several domestic makes, including Ford, Cadillac, Chevrolet, Chrysler, Pontiac, Dodge, Jeep, Hummer, Plymouth, Oldsmobile, and more!

    Why Choose SpeedTech Exhausts?

    Years upon years of developing and testing exhaust products have provided SpeedTech with a unique insight as to how to design exhaust systems that both sound and perform exceptionally well. The company spends countless hours assessing and refining the sound attributes of each design to eliminate unwanted noises (i.e. drone) and enhance the best sounds from a vehicle’s motor. Speed Technologies, over the years, has become the leader in providing the daily 700-horsepower-plus daily-driven Porsche 996TT with the proper exhaust and accessories. The result is an expansive series of superior-sounding, high-performance exhausts for a variety of Porsche and other high-end sports cars. Additionally, these systems deliver substantial horsepower and torque gains, along with improved throttle response which is achieved with the free-flowing, unrestrictive straight-through design.

    Upgrade to a SpeedTech Exhaust Today

    If you want to improve the sound, performance, and appearance of your Porsche or domestic sports car, SpeedTech is the brand you need. SpeedTech exhaust systems boast unsurpassed quality, power gains, and performance with a tantalizing exhaust note. Vivid Racing carries a wide array of SpeedTech products to enhance your driving experience, including catted downpipes, catback exhausts, exhaust tips, catalytic converters, headers, intake manifolds, mufflers, and turbo hoses. If you cannot find what you are looking for above or have fitment questions, please do not hesitate to call our specialized sales team at (480) 966-3040.

    Warranty: All SpeedTech products are protected by a lifetime warranty against manufacturing defects or structural failure for the original owner. This excludes catalytic converters which carry a 3 year warranty for the original owner. Our Catalytic converter warranty is for catalytic converter efficiency performance only and does not cover failure or abuse from track, off road or racing events. Any products sold that are manufactured by other companies (such as spark plugs, coils, etc.) offer the warranty from the original manufacturer.

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